Mohamed Raouf Barkallah

Managed incidents and requests via an ITOP ticketing system, ensuring efficient follow-up and quick resolution to guarantee customer satisfaction. Provided Level 2 and 3 technical support for end-users, resolving complex issues related to systems, software, and networks. Installed and configured WSUS, DHCP, DNS, AD, and SQL servers compatible with target Windows Server versions. Monitored network equipment (APs, switches, servers, and firewalls) using Zabbix monitoring server with specific templates for each device. Upgraded old servers to the latest stable version (like Gitlab, Redmine, Alfresco...). Installed and configured various technologies for performance monitoring. Created automation scripts as needed. Migrated web servers from on-premises to the cloud (AWS). Set up a ZKT server for managing attendance devices and access permissions. Deployed an Alfresco server and an enterprise content management platform using Docker to simplify deployment, management, and scaling. Configured SSL VPN / IPsec VPN to ensure secure and encrypted connection between remote users and the corporate network. Performed regular and proactive system maintenance. Installed and configured IT networks, with particular expertise in configuring equipment such as FortiGate firewalls, FortiSwitch and Aruba switches, and Aruba access points. Implemented and managed security policies in accordance with ISO 27001 standard. Installed and configured security software such as antivirus and firewalls. Proactively resolved security incidents. Trained users on system and network usage. Managed Group Policy Objects.

Administered the virtualised infrastructure with Proxmox and implemented security with FortiGate. Maintained systems in operational condition. Provided Level 2 and 3 technical support. Created dedicated servers for the information system with the implementation of a backup strategy. Managed and administered an industrial IT environment for over 700 users, including Windows, Linux, and Active Directory servers, as well as Cisco, Cyberoam, Sophos, and FortiGate networks. Ensured secure network communication between more than 60 sites using VPN site-to-site.

Analyzed business needs and designed the new system architecture. Implemented patches and configurations to ensure proper server operation. Resolved installation and configuration issues for SMTP, Roundcube Mail, and Postfixadmin servers on Red Hat systems. Monitored and maintained brand consistency across all marketing channels and materials. Implemented and configured ELK. Implemented and securely configured MySQL replications. Set up secure web servers with Apache and Nginx. Implemented supervision servers (Nagios and Centreon) for various servers and the supervision of interactive terminals. Managed cloud infrastructures with OVH, Kimsufi, AquaRay, and Ikoula, including the setup, configuration, and maintenance of virtual servers and storage resources. Configured and managed advanced DNS with Namebay and Cloudflare to ensure efficient domain name resolution and DNS record management. Proactively monitored the performance and availability of cloud services, and implemented strategies to ensure high availability and resilience of infrastructures.